 Public school students in Ho-Ho-Kus for ninth through twelfth grades attend Northern Highlands Regional High School, which also serves students from Allendale, Upper Saddle River and some of Saddle River's students (who have the option of attending either Northern Highlands or Ramsey High School, as part of sending/receiving relationships with the two districts).As of the 2017–18 school year, the high school had an enrollment of 1,352 students and 113.0 classroom teachers (on an FTE basis), for a student–teacher ratio of 12.0